INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION
id014000802200
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Note
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• Perform the following inspection according to the DATA MONITOR function (indicated by monitor item from here onwards).
Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the MAF/IAT sensor connector.
3. Verify that the resistance between terminals D and E is within the specification.
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• If not within the specification, replace the MAF/IAT sensor.
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• If the monitor item condition/specification (reference) is not within the specification, even though the resistance is within the specification, carry out the "Circuit Open/Short Inspection".
Resistance
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Ambient temperature (°C {°F})
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Resistance (kilohm)
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-20 {-4}
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13.6-18.4
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20 {68}
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2.21-2.69
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60 {140}
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0.493-0.667
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Circuit Open/Short Inspection
1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
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• If there is no continuity, the circuit is open. Repair or replace the wiring harness.
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- IAT sensor terminal D and PCM terminal 2AQ
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- IAT sensor terminal E and PCM terminal 2AY
Short circuit
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• If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
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- IAT sensor terminal D and power supply
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- IAT sensor terminal D and body GND
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- IAT sensor terminal E and power supply
